12 Volt Power Outlet Receptacle Description and Operation
When the appropriate 12 volt power outlet accessory is inserted by the customer, the power outlet receptacle is supplied B+ and ground.
230 Volt Power Outlet Receptacle System Description
The alternating current (AC) accessory power outlet system consists of the accessory AC/DC power control module and the accessory power outlet. The accessory AC/DC power control module converts 12 volt direct current (DC) battery power to 220-230 volts at 50 Hertz (Hz) AC power to operate AC powered devices. The power inverter module within the accessory AC/DC power control module provides up to 150 watts of power. The accessory power outlet provides the usual connection for AC powered devices.
230 Volt Power Outlet Receptacle System Operation
The accessory AC/DC power control module receives fuse protected battery voltage and is connected to the 12 volt electrical system ground. The accessory power outlet has an internal switch, that detects when an AC powered device is plugged into the outlet. When the ignition is ON, and an AC powered device is plugged into the accessory power outlet, the normally open switch in the accessory power outlet, closes. When the accessory AC/DC power control module detects the voltage from the accessory power outlet switch, the inverter module begins to supply 220-230 volts AC to the accessory power outlet after a 1.5 second delay. The accessory AC power system is protected against circuit overload and circuit shorts to ground.
230 Volt Power Outlet Receptacle Isolation Fault Protection
The accessory AC/DC power control module contains a ground fault circuit interrupter (GFCI). GFCI monitors the 230 volt circuit for the following conditions:
| • | The line A or line B circuit becomes shorted to the vehicle chassis ground |
| • | The current flow through the line A circuit and the line B circuit differs from each other by greater than 6 mA |
If any of the above conditions is detected, the accessory AC/DC power control module will turn OFF. The module remains OFF, until the AC powered device is unplugged from the outlet, and then plugged into the outlet after a 3 second delay.
230 Volt Power Outlet Receptacle Overload Shutdown
The accessory AC/DC power control module will turn OFF if the current in the 230 volt circuit is greater than 3.8 amps for 1 second, or 2.5 amps for 10 seconds. The module will turn ON again, when the AC powered device is unplugged from the outlet, and then plugged into the outlet after a 3 second delay.
230 Volt Power Outlet Receptacle Internal Shutdown
The accessory AC/DC power control module will turn OFF if the B+ supply voltage is greater than 16.5 volts or less than 11 volts. The module will also turn OFF if the device temperature is greater than 85°C (185°F). The module will turn ON again, after the shutdown condition is corrected, and the AC powered device is unplugged from the outlet, and then plugged into the outlet.
